On Fri, 4 Dec 2015, jbelbute wrote: JMMB: > >> I've correctly set my data as a "time series" but I still have >> the menu Add/Periodic dummies' not active. What am I doing wrong >> (It should be mentioned that I've the gretl 2015d version)?
Allin: > What's the periodicity of your data? JMMB: > Only occurs with annual data Well, then there are no sub-periods (months, quarters, hours, whatever) for which to add periodic dummies. If you want a dummy variable for each year (unusual, but hey) you can do list DT = dummify(time) Allin Cottrell